package com.sky.service.impl;


import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.WebSocket.WebSocketServer;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.ThreadLocalUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.*;
import java.util.stream.Collectors;

@Service
@Slf4j
public class OrderServiceimpl implements OrderService {

    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private CartMapper cartMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private UserMapper userMapper;

    @Autowired
    private WebSocketServer webSocketServer;
    /**
     * 用户下单
     * @param ordersSubmitDTO
     * @return
     */
    @Override
    @Transactional(rollbackFor = Exception.class)
    public OrderSubmitVO submit(OrdersSubmitDTO ordersSubmitDTO) {
        // TODO: 2023/8/27 订单提交
        //判断地址是否存在
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if (addressBook == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

        //判断购物车数据是否存在
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(ThreadLocalUtil.getCurrentUser());
        List<ShoppingCart> shoppingCarts = cartMapper.Query(shoppingCart);
        if (shoppingCarts == null || shoppingCarts.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        //生成订单数据
        // 生成订单号
        String userId = String.valueOf(ThreadLocalUtil.getCurrentUser());
        String uuidPart = UUID.randomUUID().toString().replace("-", "").substring(0, 5);
        String orderNumber = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMddHHmmss"))
                + userId
                + uuidPart;


        Orders orders = new Orders();

        BeanUtils.copyProperties(ordersSubmitDTO, orders);
        orders.setUserId(ThreadLocalUtil.getCurrentUser());
        orders.setNumber(orderNumber);
        orders.setPayStatus(0);
        orders.setStatus(1);
        orders.setUserName(addressBook.getConsignee());
        orders.setConsignee(addressBook.getConsignee());
        orders.setOrderTime(LocalDateTime.now());
        orders.setPhone(addressBook.getPhone());
        orders.setAddress(addressBook.getProvinceName()+addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());

        orderMapper.insert(orders);


        //生成订单详情数据

        for (ShoppingCart cart : shoppingCarts) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailMapper.insert(orderDetail);
        }


        //删除购物车数据
        cartMapper.clean(ThreadLocalUtil.getCurrentUser());

        //返回订单数据

        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .orderTime(orders.getOrderTime()).build();
        log.info("订单数据：{}",orderSubmitVO);
        return orderSubmitVO;
    }

    /**
     * 订单支付
     * @param ordersPaymentDTO
     * @return
     */
    @Override
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception{
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        //调用微信支付接口，生成预支付交易单
        /*JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }*/

        JSONObject jsonObject = new JSONObject();
        jsonObject.put("code", "ORDERPAID");
        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        //为替代微信支付成功后的数据库订单状态更新，多定义一个方法进行修改
        Integer OrderPaidStatus = Orders.PAID; //支付状态，已支付
        Integer OrderStatus = Orders.TO_BE_CONFIRMED;  //订单状态，待接单

        //发现没有将支付时间 check_out属性赋值，所以在这里更新
        LocalDateTime check_out_time = LocalDateTime.now();

        //获取订单号码
        String orderNumber = ordersPaymentDTO.getOrderNumber();
        Orders byNumber = orderMapper.getByNumber(orderNumber);

        log.info("调用updateStatus，用于替换微信支付更新数据库状态的问题");
        orderMapper.updateStatus(OrderStatus, OrderPaidStatus, check_out_time, orderNumber);

        Map map = new HashMap<>();
        map.put("type",1);//1代表来单提醒，2代表催单
        map.put("orderId",byNumber.getId());
        map.put("content", "订单号"+orderNumber);
        String jsonString = jsonObject.toJSONString(map);
        webSocketServer.sendToAllClient(jsonString);


        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
    }

    /**
     * 订单详情
     * @param id
     * @return
     */
    @Override
    public OrderVO getOrderDetail(Long id) {

        Orders orders = orderMapper.getOrderbyId(id);
        List<OrderDetail> orderDetailList = orderDetailMapper.getOrderDetailbyOrderId(id);
        OrderVO orderVO = new OrderVO();
        //对姓名手机号进行脱敏

        String consignee = orders.getConsignee();
        if (consignee != null && !consignee.isEmpty()) {
            String maskedName = consignee.charAt(0) + "*".repeat(Math.max(0, consignee.length() - 2)) +
                    (consignee.length() > 1 ? consignee.charAt(consignee.length() - 1) : "");
            orders.setConsignee(maskedName);
        }
        //orders.setConsignee(orders.getConsignee().replace(orders.getConsignee().substring(1,orders.getConsignee().length()-1),"*"));
        orders.setPhone(orders.getPhone().replace(orders.getPhone().substring(3,7),"****"));
        BeanUtils.copyProperties(orders,orderVO);
        log.info("订单详情：{}",orderVO);
        orderVO.setOrderDetailList(orderDetailList);


        return orderVO;
    }

    /**
     * 用户订单分页查询
     * @param ordersPageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQueryUser(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(),ordersPageQueryDTO.getPageSize());
        ordersPageQueryDTO.setUserId(ThreadLocalUtil.getCurrentUser());
        Page<Orders> ordersList = (Page<Orders>) orderMapper.getOrderbyUserId(ordersPageQueryDTO);
        List<OrderVO> orderVOList = new ArrayList<>();
        if (ordersList != null&& ordersList.size() > 0){
            //获取订单详情
            for (Orders orders : ordersList) {
                List<OrderDetail> orderDetailList = orderDetailMapper.getOrderDetailbyOrderId(orders.getId());
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders,orderVO);
                orderVO.setOrderDetailList(orderDetailList);
                orderVOList.add(orderVO);
            }
        }

         return new PageResult(ordersList.getTotal(),orderVOList);

    }

    /**
     * 用户取消订单
     * @param id
     */

    @Override
    public void cancel(Long id)  {
        // 根据id查询订单
        Orders ordersDB = orderMapper.getOrderbyId(id);

        // 校验订单是否存在
        if (ordersDB == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        // 校验订单是否可取消 //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        if (ordersDB.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());

        // 订单处于待接单状态下取消，需要进行退款
        /**if (ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            //调用微信支付退款接口
            weChatPayUtil.refund(
                    ordersDB.getNumber(), //商户订单号
                    ordersDB.getNumber(), //商户退款单号
                    new BigDecimal(0.01),//退款金额，单位 元
                    new BigDecimal(0.01));//原订单金额

            //支付状态修改为 退款
            orders.setPayStatus(Orders.REFUND);
        }*/

        // 更新订单状态、取消原因、取消时间
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);


    }

    /**
     * 再来一单
     *
     * @param id
     */
    public void repetition(Long id) {
        // 查询当前用户id
        Long userId = ThreadLocalUtil.getCurrentUser();

        // 根据订单id查询当前订单详情
        List<OrderDetail> orderDetailList = orderDetailMapper.getOrderDetailbyOrderId(id);

        // 将订单详情对象转换为购物车对象
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(x -> {
            ShoppingCart shoppingCart = new ShoppingCart();

            // 将原订单详情里面的菜品信息重新复制到购物车对象中
            BeanUtils.copyProperties(x, shoppingCart, "id");
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());

            return shoppingCart;
        }).collect(Collectors.toList());

        // 将购物车对象批量添加到数据库
        cartMapper.insertBatch(shoppingCartList);
    }

    /**
     * 订单搜索
     * @param ordersPageQueryDTO
     */
    @Override
    public PageResult pageQuery(OrdersPageQueryDTO ordersPageQueryDTO) {

        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        //这里是如果获取的话是管理员的id
        //ordersPageQueryDTO.setUserId(ThreadLocalUtil.getCurrentUser());
        Page<Orders> page = (Page<Orders>)orderMapper.getOrderbyUserId(ordersPageQueryDTO);

        List<OrderVO> orderVOList = new ArrayList<>();
        for (Orders orders : page) {
            Long id = orders.getId();
            List<OrderDetail> orderDetailList = orderDetailMapper
                    .getOrderDetailbyOrderId(id);
            OrderVO orderVO = new OrderVO();
            BeanUtils.copyProperties(orders,orderVO);
            //

            List<String> collect = orderDetailList.stream().map(x -> {
                String orderDish = x.getName() + "*" + x.getNumber() + ";";
                return orderDish;
            }).collect(Collectors.toList());
            String join = String.join("", collect);

            orderVO.setOrderDishes( join);
            /*for (OrderDetail detail : orderDetailList) {
                orderVO.setOrderDishes(detail.getName()+"*"+detail.getNumber()+" ");
            }*/


            orderVO.setOrderDetailList(orderDetailList);
            orderVOList.add(orderVO);

        }


        return new PageResult(page.getTotal(),orderVOList);
    }

    /**
     * 订单统计
     * @return
     */
    @Override
    public OrderStatisticsVO statistics() {

      Integer toBeConfirmed =  orderMapper.countstatus(Orders.TO_BE_CONFIRMED);
      Integer confirmed =   orderMapper.countstatus(Orders.CONFIRMED);
      Integer deliveryInProgress =  orderMapper.countstatus(Orders.DELIVERY_IN_PROGRESS);

        return  OrderStatisticsVO.builder()
                .toBeConfirmed(toBeConfirmed)
                .confirmed(confirmed)
                .deliveryInProgress(deliveryInProgress)
                .build();
    }

    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = new Orders();
        orders.setId(ordersConfirmDTO.getId());
        orders.setStatus(Orders.CONFIRMED);
        orderMapper.update(orders);
    }

    /**
     * 拒绝单 rejection
     *
     * @param ordersRejectionDTO
     */
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) throws Exception {

        // 根据id查询订单
        Orders ordersDB = orderMapper.getOrderbyId(ordersRejectionDTO.getId());

        // 订单只有存在且状态为2（待接单）才可以拒单
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        //支付状态
        /*Integer payStatus = ordersDB.getPayStatus();
        if (payStatus == Orders.PAID) {
            //用户已支付，需要退款
            String refund = weChatPayUtil.refund(
                    ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01));
            log.info("申请退款：{}", refund);
        }*/

        // 拒单需要退款，根据订单id更新订单状态、拒单原因、取消时间
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    /**
     * 管理员取消订单
     * @param ordersCancelDTO
     */
    @Override
    public void cancelByAdmin(OrdersCancelDTO ordersCancelDTO) {

        // 根据id查询订单
        Orders ordersDB = orderMapper.getOrderbyId(ordersCancelDTO.getId());

        //支付状态
        /*Integer payStatus = ordersDB.getPayStatus();
        if (payStatus == 1) {
            //用户已支付，需要退款
            String refund = weChatPayUtil.refund(
                    ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01));
            log.info("申请退款：{}", refund);
        }*/
        if(!ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED) ||ordersDB== null
        || !ordersDB.getPayStatus().equals(Orders.CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersCancelDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersCancelDTO.getCancelReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }


    /**
     * 派送订单
     *
     * @param id
     */
    @Override
    public void delivery(Long id) {

        // 根据id查询订单
        Orders ordersDB = orderMapper.getOrderbyId(id);

        // 校验订单是否存在，并且状态为3
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }


        Orders orders = new Orders();
        orders.setId(id);
        //更新状态
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);
        orderMapper.update(orders);
    }

    @Override
    public void complete(Long id) {
        Orders orderDB = orderMapper.getOrderbyId(id);

        // 判断订单是否存在和状态是否为派送中
        if (orderDB == null&& !orderDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        Orders orders = Orders.builder()
                .id(id)
                .status(Orders.COMPLETED)
                .deliveryTime(LocalDateTime.now())
                .build();
        orderMapper.update(orders);
    }

    @Override
    public void reminder(Long id) {
        Orders order = orderMapper.getOrderbyId(id);
        if (order == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        Map map = new HashMap<>();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号："+order.getNumber());

        webSocketServer.sendToAllClient(JSON.toJSONString(map));


    }


}
